Alexander Earthquake Information

Alexander Earthquake Risk Grade

The USGS database shows that there is a 1.629% chance of a major earthquake within 50 miles of Alexander, Arkansas within the next 50 years. The largest earthquake within 50 miles of Alexander, Arkansas was a 4.7 Magnitude in 1982.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
1.629%
5.1
1.319%
5.2
1.319%
5.3
1.070%
5.4
0.869%
5.5
0.708%
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5.6
0.657%
5.7
0.537%
5.8
0.473%
5.9
0.389%
6.0
0.362%
6.1
0.288%
6.2
0.248%
6.3
0.194%
6.4
0.177%
6.5
0.136%
6.6
0.113%
6.7
0.101%
6.8
0.071%
6.9
0.055%
7.0
0.047%
7.1
0.028%
7.2
0.019%
7.3
0.015%
7.4
0.006%
7.5
0.001%
7.6
0.001%
7.7
0.000%
7.8
0.000%
7.9
0.000%
8.0
0.000%
8.1
0.000%
8.2
0.000%
8.3
0.000%
8.4
0.000%
8.5
0.000%
8.6
0.000%
8.7
0.000%
8.8
0.000%
8.9
0.000%
9.0
0.000%
9.1
0.000%
9.2
0.000%

Historical Earthquake Data (Within 50 Miles)

All distances and depths in the table below are measured in miles.